chairman and delegates, i accept your nomination for president of the united states. >> reporter: and raise the question of whether the country is better off now than it was when president obama was elected. >> without a change in leadership, why would the next four years be any different from the last four years? >> reporter: the vice president's response? >> what they espouse is a social policy out of the ú60s, a foreign policy with echoes of the cold war, and an economic policy that brought the great recession. >> reporter: now, the president is continuing his road to charlotte campaign swing today in ohio, and then tour the devastation left behind by hurricane isaac. live in charlotte, sandra endo. dave, back to you. >>> hundreds of occupy protesters rallied in the streets of charlotte ahead of the democratic national convention. >> show me what catastrophe looks like. >> the protesters say they want to call attention to corporations' influence on politics. some of them had signs about union and veterans rights, and they called for immigration reform. >> to hold the democratic pa